Life is short. The fan should be able to move at least 2500 CFM (cubic feet per meter) of air from the equipment it is fit on; It should have a shroud that will let air flow correctly over the whole span of the radiator. It's getting to about 240. Puller-style fans mount behind the radiator and draw air through the core. Very, one of the properties of air is that it likes to follow the path of least resistance. Buy online for free next day delivery or same day pickup at a store near you. The blades are pretty sturdy, I was thinking I had read something somewhere that the blades should be a certain distance from the radiator, just don't recall what that distance was. An electric fan SHOULD NOT run all the time. I got this pipe replaced and the meter was showing the normal temp. 0 Members and 1 Guest are viewing this topic. And yes, the unit is made of Steel Motor and Plastic Shroud, making it durable and long-lasting. A good example is a pickup truck with a factory towing package. Optimum distance between fan and radiator, Re: Optimum distance between fan and radiator, http://sbftech.com/index.php/topic,20009.0.html, Quote from: fast88 on December 19, 2012, 08:12:13 pm, Quote from: z-adamson on July 16, 2016, 05:16:28 pm, Quote from: 289nate on February 19, 2013, 12:04:43 pm, Quote from: jayh on July 26, 2010, 09:21:26 am, Quote from: Blk88GT on July 26, 2010, 10:52:18 am. As shown in the left picture above, the tab at the top of the pin should be on the same side of the radiator as the fan will be, because it will hold the fan in place. Optimizing the air movement across the fins of the radiator is essential to prevent overheating—a task that electric fans can often handle better than engine driven fans. Now I have this, tight fit but works great. When making big horsepower on the street, keeping your engine cool is essential. Switching from an engine driven to electric fan gains horsepower & fuel economy. Maradyne electric fans hace concentric rings to tie fan blade tips together. 3. Topic: Optimum distance between fan and radiator (Read 32587 times). An electric fan is preferred because when you need a fan the most (at idle or cruising speeds) an electric fan is delivering maximum air independent of engine RPMs. A radiator fan uses its fast spinning blades to draw in outside air. Electric fans are powered by the vehicle's electrical system and are controlled by thermal sensors. Fans that move 2000-2300 CFM's are worth the investment. I tried a six blade fan, but it was worse. from Joplin, Missouri. Now, opponents will argue that with a puller style fan, you have that big, hot radiator in front that the fan has to pull all that air through. Fans move air through the radiator assisting in cooling the engine. These fans pull a lot of amps. On checking I realized that the coolant container was empty and there was a leak in one of the pipes further. So does an electric fan shroud that also mounts flush, block other areas of the radiator actually HELP or INHIBIT cooling to the engine. Installing an electric radiator fan can be a messy job, especially if you don't have experience with cars. Mount the fan as high up on the core as possible. An electric fan and shroud will out-perform an engine driven fan at idle, stop & go, or in-town driving. Second generation camaro. For example, the Pontiac 6000 fan is a perfect fit on the stock 2nd gen rad. All shrouded fans should be on the engine side of the radiator. A good example is a pickup truck with a factory towing package. Joined: Aug 30, 2005 Posts: 3,331. These situations are when you need the fan to perform the most. When adding a shroud with a fan, add approximately ⅞” between the water pump and the radiator. The key advantage of an electric fan is increased engine cooling at idle when it is most needed. SHARE POST #1. Profile Page. Distance from the core is not that important. I could see it getting a wobble from a bad bearing or something of the sort. When installing an electric fan how much of the radiator needs to be covered ? If it has failed, it … What about a fan shroud? The best results are obtained by using Be Cool fan mounting brackets. It runs on 15 amp, 250 Watt and 12 volts, just like any other regular fan and can be reversed by reversing the blade fan. Fan Shroud. But after replacing the pipe and coolant, … How important is it to have a shroud around my fan ? RogerH. Hauling ass & sucking gas are the best uses for a truck. I got this pipe replaced and the meter was showing the normal temp. Most fans should be about 1 inch from the radiator if no shroud. Then I tried this, just did?nt do the job. Flex-A-lite recommends that the fan blades be within 1 inch of the radiator and no more than 2 inches away. If your mechanical fan had a fan spacer, it can be removed with the fan. Answer:Without a shroud the only part of the radiator that would work at idle (speed under 15 mph) would be the area where the fan was located behind the core. Electric Cooling Fans. The cooling/radiator fan motor keeps the engine from overheating so your vehicle stays in good working condition. An electric fan and shroud will out-perform an engine driven fan at idle, stop & go, or in-town driving. When installing an electric fan how much of the radiator needs to be covered ? Pusher-style fans mount on the front of the radiator and blow air through the radiator core. yes, the shroud extends 6", to put the fan exactly in the opening, it's the shroud all the vendors sell for the 55-59 V8 conversion and can be found on lots of'em.... it's 9" from the back edge of the factory crossmember to the center of the tube cross member.... there's a tight 2 fingers from the HEI to the firewall, and there's no problem with the pulleys, including power steering... and there is a 1" … But the rate of air flow and the air temperature now depend on what speed the vehicle is traveling. This arrangement is particularly useful if heavy cooling tasks are mandated by the application. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan. A mechanical fan WILL spin as long as the engine is running, but it will only 'lock up' when needed. You add an electric fan to your radiator to move more air thru the radiator to increase the efficiency of the radiator and cooling system. IOW, when should the fan turn on relative to the thermostat opening? In the absence of a fan, air still flows in, usually directed by the shroud. So you..like the helicopter are in the air moving business. Cross flow radiators mounted higher than the engine are ideal because the cap is on the tank that is connected to the water pump inlet. Fan Shroud. Shrouded Powerpacks. Discussion Starter • #1 • Mar 12, 2010. Be a do'er and not a shoulda done'er. When making big horsepower on the street, keeping your engine cool is essential. The core of the radiator was not meant to support any weight, and may be subject to failure or premature wear if asked to handle the tension of the zip ties. https://bangshift.com/forum/forum/ba...ix-to-4sixzero, http://www.bangshift.com/forum/forum...485-bbr-s-83gt, http://www.bangshift.com/forum/forum...uck-conversion, https://bangshift.com/forum/forum/ba...tooth-and-nail. Conversely, if your vehicle has a belt-driven fan located behind the radiator, you'll need a "pusher" auxiliary fan that pushes air from in front of the radiator. There are a huge selection of electric radiator fans, and it becomes tricky to find the best one. I use a 31x19 and I can't cover the whole rad with the Mark 8 fan, but it sure does a hell of a good job keeping things cool. However, when you come to a stop, or get stuck in stop and go traffic, you’re going to overheat. Hi, On my OHC 1.3, recently I noticed high temperature on the temp guage meter and also some vapour from under the bonnet. Should the radiator fan be running all the time? Electric fans are not dependent on engine RPMs to deliver the maximum amount of airflow. Chop it down as far as you need and then use some black fuel line to make a gasket. You can use this Electric Radiator Fan for condensers, transmission coolers, oil coolers, radiators and more. Having them too close is just as bad as having them too far away. This fan is a 10 blade 16 inches puller that has a tested CFM of 3000. Besides that, it has 2000 CFM Rating, and the wiring and blades can be reversed to makes this fan an air pusher. Function. For sake of discussion, it is a 180*F thermostat. I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. But the farther away the fan is from the radiator, the less effective it becomes. Activated by a coolant sensor via the computer, the coolant sensor is in charge of monitoring the temperature of the engine’s coolant. Installing an electric radiator fan can be a messy job, especially if you don't have experience with cars. Fans that move 2000-2300 CFM's are worth the investment. I really can't see it being that big of a benefit. I want to use that stock 5.0 HO shroud as it covers more of the radiator. It's unlikely you would have room for both, but you should never run a mechanical fan with an electrical fan on the same side of the radiator. flush against the radiator. Makes for better cooling AND makes you … a shroud can be as simple as covering the un-covered portion of the radiator with aluminum... All times are GMT-8. Select a smaller diameter fan with more projected width (a bigger bite) to solve the problem and maintain similar airflow. Running two electric fans allows for more space next to the water pump, with or without a shroud. These situations are when you need the fan to perform the most. If it only covers 75 percent of the core, it’s not drawing air through as much of the radiator as it should, leaving you with less-than-ideal cooling. Any ideas? IP: Logged. , 8.8 Traction Lok 3.55 gears, Cobra 13" front brakes, Cobra 11.65" rear discs. Tom 88 vert 5spd 3:73 Crower 15511 cam @ 110, 70mm TB, SMII, GT40P wManley race valves Isky Springs and Ti locks/keepers, Mac 1.625 shorties, dumpoed Flowmasters. For those of you who might be confused as to what shrouding means, do not worry because we have got you covered on that as well. Automotive & Light Truck Fan Options. What should the turn-on/off points (temp) be for an electric fan, relative to the thermostat, to achieve maximum cooling and not have the fan run for extended periods? It may sound like a funny question, but some of the cars I have use one fan for when the water gets hot, and another fan for when AC is on. Electric powered fans offer the best alternative. For those of you who might be confused as to what shrouding means, do not worry because we have got you covered on that as well. If coolant temperature is too high while idling in hot weather, that's inadequate air flow at low speed, in which case a fan shroud should help noticeably (maybe cure the problem entirely). Electric cooling fans are attached either in the front or back of the radiators. The cooling/radiator fan motor is located either at the front or rear of the radiator in the engine compartment. Electric radiator fans are available in both pusher and puller designs. Puller-style fans are recommended for applications in which the electric fan is the primary cooling source. Smaller 12 to 14 inch fans have one outer ring preventing blade flex and distortion. Switching from an engine driven to electric fan gains horsepower & fuel economy. This is one reason why information on when a radiator fan is suppose to start can be beneficial to vehicle owners. How about some good side profile photos, please. But you should have some sort of audible warning that its going bad I would think.. When installing electric cooling fans, it is important to cover as much surface area as possible. Tell us about your vehicle to find the right parts faster. My contention is that air flow is inhibited past the OTHER coils not touched by the electric fan that's flush. Automotive & Light Truck Fan Options. I don't think the electric blades flex - I haven't had any issues. Suction fan kit. Radiator repairs sometimes entail removing the radiator. This page was generated at 05:34 AM. Mines real close and I haven't had any issues (90 w/ a MkVIII). If your mechanical fan had a fan spacer, it can be removed with the fan. Flex-a-lite has expanded its line of direct-fit Flex-a-fit® aluminum radiator and electric fan combinations for full-size trucks including the 2004-07 Ford Super Duty F-250 and F-350 with the 6.0L PowerStroke turbodiesel engine. This in turn cools the antifreeze and water that's within the radiator, which keeps the vehicle's engine cool as well. Fitting an electric, thermostatically controlled fan in place of the mechanical, engine-driven type can save you fuel and allow you to regain engine power normally wasted in constantly driving the fan. 16 inch fans like this one have one outer and one inner ring to add stiffness to the blades and prevent them from flexing rearward into the shroud at high RPM. Remember: the main reason auto manufacturers started switching to electric fans is … In such cases it's often easier to unhook the electrical wiring to the fan and leave it attached to the radiator. I also have a 3/4" restrictor in the thermostat housing. If we knew what we were doing, we wouldnt call it research, would we? Mounted on the engine side of the radiator, a pull fan does not interfere with airflow at highway speeds. How far should the fan be from the radiator on an open engine compartment? This article shows you how to fit an electric fan to a car that has a transverse engine with a side-mounted radiator - such as the Mini. The electric fan should cover as much radiator surface as pos-sible. Radiator Fan Cost. NEVER use the radiator as a ground. atomickustom. I am not happy with how my Taurus fan works and want to make sure I have it set up correctly. Quote; Link to post Share on other sites. The shroud’s purpose is to pull air through the entire cooling surface of the radiator instead of only through the fan. The most important thing is to SHROUD it effectively. There should be 1-inch of clearance around the outside of the fan blades to the fan shroud. Mounted on the engine side of the radiator, a pull fan does not interfere with airflow at highway speeds. I don't really see an E fan flexing a whole lot. The ECU signals the radiator fan to work at the precise time. Doing your own mechanic work can help you to save time, money and an overall hassle, so installing the electric radiator fan can be another trick up your sleeve. ->The fan does not cover the radiator surface (31x19). We recommend 70% of the radiator core be covered. After a square-shaped adhesive foam pad is slid onto the pin (the pad will adhere to the radiator), the pin can be slid through the small gaps between radiator fins. A good mechanical fan is often sufficient to keep an engine at operating temperature. How important is it to have a shroud around my fan ? This type of fan is used in both front and rear-wheel-drive cars. 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And dirty test to see which fan distance was most effective at operating temperature a 4 blade 300 ford cyl! 70 % of the radiator needs to be covered moving business interfere with at! 'S are worth the investment mount on the engine side of the installation is to install electric! '' restrictor in the engine is running, but it how far should electric fan be from radiator only 'lock up ' when needed when a fan... Is most needed $ 200 – $ 400 to perform the most use two fans (,! Kit form with all the time check is the distance from the radiator and blow air through the instead. 'S electrical system and are controlled by thermal sensors, … when installing an electric radiator fan running. And there was a leak in one of the fan blades be within 1 inch of clearance between the,. Is one reason why information on when a radiator fan is supplied in kit form with the! Have some sort of audible warning that its going bad i would..... 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